<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        {{message}}
        {{count}}
    </div>
</body>
</html>
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script>
    const { createApp } = Vue;
    createApp({
        data() {
            return {
                message: 'Hello Vue!',
                count:0
            }
        },
        methods: {
            inc(){
                this.count++;
            }
        },
        mounted() {
            this.inc();
        },
    }).mount('#app');
    
</script>